Distance measurements to the object within the laser scanner sensor’s beam path include systematic or bias and statistical random errors.

"Systematic error" и "bias error" - это одно и то же и означает "систематическая погрешность"?

http://apollo.lsc.vsc.edu/classes/remote/lecture_notes/measurements/bias_random_errors.html
http://onlinecourses.science.psu.edu/stat509/node/26

words "bias" and "systematic error" basically refer to the same notion, but they may not be complete synomyms, as in:
"A systematic error (an estimate of which is known as a measurement bias) is associated with the fact that a measured value contains an offset". (http://en.wikipedia.org/wiki/Observational_error)